Amplifx closed or open triangle3/30/2023 Interfaces in code offers an additional level of abstraction which in turn enables loose coupling. When you write your code in such a way that it has no modification and allows extension, you will get better extensibility on it’s own. Needless to say, Open-closed Principle offers a better extensibility to your code. What is the benefits of Open Closed Principle?īelow are some of the benefits of applying open closed principle in your code : Easier Extensibility This AreaCalculator class now fully removes our design flaws noted above and provides a clean solution which adheres to the Open-Closed Principle. We start with creating a class for our first shape, let’s say Rectangle which has 2 attributes length & width. Let’s assume that we have to write a program that calculates area of various shapes. This reduces the risk of introducing new bugs to existing code, leading to more robust software. We can add the functionality by creating new classes that implement the interfaces. Generally, you achieve this by referring to abstractions for dependencies, such as interfaces or abstract classes, rather than using concrete classes. Extending certain behaviors of the class.Overwriting the required behaviors from the class.When needs to extend functionality – avoid tight coupling, don’t use if-else/switch-case logic, do code refactoring as required. However, if you correctly structure your classes and their dependencies, you can add functionality without editing existing source code.ĭesign and code should be done in a way that new functionality should be added with minimum or no changes in the existing code. These two parts of the principle appear to be contradictory. “Closed for modification” means that once you developed a class you should never modify it, except to correct bugs. “Open to extension” means that you should design your classes so that new functionality can be added as new requirements are generated. So, we should modify our class only at the time of bug fixing. Of course, the one exception to the rule is when fixing bugs in existing code. Therefore, we also stop causing potential new bugs in an otherwise happy application. In doing so, we stop ourselves from modifying existing code. If we consider our software component as a class, then Classes should be open for extension, but closed for modification. Simply put, Software components like classes, modules, and functions should be open for extension but closed for modifications. The principle says, “Software components should be open for extension, but closed for modification”. Dependency Inversion Principle(DIP) What is Open-Closed Principle (OCP) ?.What are the Design Patterns that follow Open Closed Principle?.What is the limitations of Open Closed Principle?.What is the benefits of Open Closed Principle?.What are the ways of extending a class ?.
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